Technical staff manual
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13.3.Service functions
13.3.1.Parameters programming function
The parameters programming function permits to change the main launch and operation parameters of
the boiler. This function works only in the standby mode and permits to change the following parameters:
“P0” – ignition power 0 - 99 (100 steps);
“P1” – minimal heating power 0 - 39 (40 steps);
“P2” – maximum heating power 40 - 99 (60 steps);
“P3” – minimal time from switching off to the next putting into operation 0 - 14 (min). Factory
settings:
For using the parameters programming function it is necessary to:
1)
Switch the boiler off, consequently pressing the button К5 (see Scheme 3, page 8) until the symbol
appears on the boiler’s display.
2)
Disconnect the boiler from the power line;
3)
Connect the boiler to the power line again. For 5 seconds there is a possibility to activate the
programming function;
Technical staff manual
4)
Press and simultaneously hold the DHW and heating temperature reduction buttons (К2 and К4) for
activating the parameters programming function;
5)
Quit hold of the buttons, when the code “P0” and the symbol
appear on display;
6)
Choose the parameter that must be changed, pressing the buttons КЗ or К4;
7)
Press the button К5, in order to see the parameter value on display. The symbol
on display
will start flickering;
8)
Change the chosen parameter’s value, pressing the buttons К1 (value increase) or К2 (value
reduction). In order to increase speed of parameter changing you may press and hold the buttons К1
13.2.6. Safety devices
Device
Purpose
For control
Safety catch 21 ( see Annex III, page
66)
Protecting the electronic board and electric circuits from the power
line surcharge and short circuit
For the heat carrier
Pressure sensor 14
Minimal heat carrier pressure control and control of absence of air
in the heating system
Thermo relay 15
Protecting primary heat exchanger from overheating
Bypass valve 20
Protecting primary heat exchanger from overheating at increased
resistance in the heating system
Safety valve 22
Spilling the heat carrier from the heating system when the pressure
is higher than 3 bar
Air outlet valve 8
Automatic air removal from the heating system
For gas
Gas supply regulator 9
Ignition at reduced pressure in order to avoid the “clap”. Blocking
gas supply when a dangerous situation appears (heat carrier
overheating, absence of draught etc.)
Ionization plug 6
Burner flame control.
Cease of gas supply to the burner when there is no flame
For combustion products
Air pressure switch
Fan operation control.
Cease of boiler operation in case of no draught or the fan’s
breakdown
Parameter
Natural gas
Liquefied gas
P0
40
60
P1
0
0
P2
99
99
P3
3
3